History along a fortress path
The Korea Tourism Organization lists an Ondal Fortress trekking-themed travel product from 1 October to 30 November 2026. It combines a heritage walk with lesser-known nearby destinations, but listing the product does not confirm your chosen departure or trail access.
Prepare for the slope
The hillside trail may include steep or uneven sections. Ask the operator for the confirmed route, distance, expected walking time, difficulty, meeting place, included transfers, total fee and cancellation terms. Check local weather or trail restrictions, and bring suitable shoes and water.
The official listing provides 010-5872-6526 for inquiries. The 30 November date is the advertised listing period, not proof of live reservations.